Eric Lee / smarc-ti-linux-kernel

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Commit d69b2e63e9172afb4d07c305601b79a55509ac4c

Authored by KOSAKI Motohiro
Committed by Linus Torvalds
1 parent 413b43deab
Exists in master and in 20 other branches dlt-processor-sdk-linux-03.00.00.04, newt-ti-linux-3.12.y, processor-sdk-linux-01.00.00, processor-sdk-linux-02.00.01, smarc-ti-linux-3.12.10, smarc-ti-linux-3.12.y, smarc-ti-linux-3.14.y, smarc-ti-linux-3.15.y, smarc-ti-lsk-linux-4.1.y, smarct3x-processor-sdk-04.01.00.06, smarct3x-processor-sdk-linux-02.00.01, smarct3x-processor-sdk-linux-03.00.00.04, smarct4x-800-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-04.01.00.06, smarct4x-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-linux-03.00.00.04, ti-linux-3.12.y, ti-linux-3.14.y, ti-linux-3.15.y, ti-lsk-linux-4.1.y

tmpfs: mpol=bind:0 don't cause mount error. 

Currently, following mount operation cause mount error.

% mount -t tmpfs -ompol=bind:0 none /tmp

Because commit 71fe804b6d5 (mempolicy: use struct mempolicy pointer in
shmem_sb_info) corrupted MPOL_BIND parse code.

This patch restore the needed one.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Ravikiran Thirumalai <kiran@scalex86.org>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Acked-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Showing 1 changed file with 7 additions and 3 deletions Side-by-side Diff

... ... @@ -2222,9 +2222,13 @@
2222 2222 if (!nodelist)
2223 2223 err = 0;
2224 2224 goto out;
2225   - /*
2226   - * case MPOL_BIND: mpol_new() enforces non-empty nodemask.
2227   - */
  2225 + case MPOL_BIND:
  2226 + /*
  2227 + * Insist on a nodelist
  2228 + */
  2229 + if (!nodelist)
  2230 + goto out;
  2231 + err = 0;
2228 2232 }
2229 2233  
2230 2234 mode_flags = 0;